Water purifier



March l2, 1929. K. Pscz E'r AL WATER PURIFIER Filed Aug. 2o, 19,25

su uw w mw a /J\ mn a f Tu. W .I4/dw.. l P. -am mu mau m, J

Patented Mar. 12, 1929.

UNITED sTATEs i '1,705,095 PATENT OFFICE;

KORNL rncz AND KARL REJT, oF BUDAPEsnHUNGARY, AssIeNoas To NATHAN MANUFACTURING COMPANY, or NEW YORK, kN. Y.

WATER PURIFIER.

Application filed August 20, 1925. Serial No. 51,289.1

The subject matter of this invention relates to water and other liquid purifiers, particularly to feed-water purifiers for boilers, adapted to precipitate the mud, scale and other foreign matters, which will be termed herein mud. Among the objects ofour invention are to provide simple and efficient apparatus, adapted to preheat and to purify water, which may readily be installed in connection with a boiler in a compact manner and which will separate a very large amount of the foreign matters, or mud, from the feedwater, and effect their removal in a simple and elicient manner. The many advantages of our invention will appear from the following description, taken with the drawings:

Fig. 1 is a vertical section of a feed-water purifier', containing the invention, on the line 1 1 of Fig. 2. Fig. 2 is a top plan view, on the line 2-2 of Fig. 1. Fig. 3 is a vertical f section of two trays on the line 3 3 of Fig.

2. Fig. 4 is a vertical section of a modified arrangement of the trays. Fig. 5 is a top plan sectional view of the modified arrangement of the trays.

The main shell 1 of the boiler has suitably connected to it, as by rivets, a steam dome'Q, with removable cover 2a, containing a series of trays 3, which may be suitably attached to the main shell 1, preferably so that they may be readily removed for cleaning purposes. Trays 3 are preferably circular receptacles,

each containing an overflow pipe 4 and a blow-off nozzle 5, with terminating blow-off pipe 5a. Trays 3 are arranged one under the other and the overflow pipes. and blow-H nozzles are arranged in a staggered relation, so that an overflow pipe is above a blow-off nozzle, except that there is no blow-o nozzle beneath the overflow pipe, which is in the lowest tray. Partitions 6 are provided in ltrays 3 to divide the tray into two parts,

running from the top of the tray to near the bottom, thus facilitating the precipitation of mud and other foreign matter as well as strengthening the trays. Preferably partitions 6 are placed perpendicular to the aXis of the main shell 1 of a locomotive boiler, so that accelerations in the motion of the locomotive will not result in water spilling over the edges of the trays.

Water enters the top tray through feed pipe 7 and fills the top tray until it yreaches the level of overflow pipe 4, which is preferably located a substantial distance below the sides of the tray, to decrease the spilling of water over the sides. Water passes from the top tray through overflow pipe 4to the next tray, preferably falling on the blow-off nozzle in this next tray. Similarly, the water continues to lthe bottom tray, from which it passes through overflow pipe 4 to receptacle 8, suitably attached to main shell 1 of the boiler. From receptacle 8, the water passes to the boiler by overflow conduits 9, which preferably terminate below the water line of the boiler. Precipitate in receptacle S may be removed by blow-olf pipe 9a, in the well known manner.

Two blow-oit pipes 5L may lead to 4a common T 10, controlled by a common valve 11, so that one valve 11 controls the blow-off of two trays.

Figs. 4 and 5 illustrate a modified con struction of the trays. Annular partition 13 having a double annular wall is located around central steam passage 14, which passes throughthe trays and provides an increased heating of the trays. Radial wall 15 extends from passage 14 to the side of the tray and is so arranged in relation to annular portion 13 that water admitted to the tray, near blow-0H nozzle 5, not shown, from feed pipe 7, or from an overflow pipe 4, willflow through a long, circuitous channel before it reaches the place of discharge.

In operation, the steam Yhas free accessto the trays, whose construction and arrange ment are such as to cause not Aonly the carbonate salts to be precipitated, but also the sulphate salts, the temperature rising to above 280 F. The comparatively slow motion of the water facilitates separation and sedimentation.` The precipitate may be removed from the trays by blowing steam through the blow-off pipes 5a, thus causing the water to be forced out, carrying with it much 0f the precipitate, substantially all of the remainder being removed by the currents of steam, after the removal of thewater.

It will be observed that the removal of the cover 2a permits ready and convenient access to the parts of the purifier,for purposes of inspection, cleaning or repair.

It is obvious that as many trays may be provided as may be necessary and that many modifications of our invention are possible. We have described an arrangement which with suction nozzles having their open ends mounted adjacent the bottoms of the trays.

2. A feed-Water purifier in a. boiler dome, comprising a series of removably mounted superimposed, communicating trays, said trays being spaced vertically apart and containing within their peripheries overfiow pipes, and means individual to each tray and extending into the, tray over th-e side wall thereof for blowing ofi' precipitate present in said trays. Y

3. In a feed-Water purifier for boilers, a series of superimposed vertically spaced apart trays removably mounted in `a boiler dome, an overflow pipe individual to each tray through which Water is supplied to the tray beneath, a blow-off pipe having branches extending. over the side walls ot the trays to points adjacent the bottoms thereof, a baffle plate in each tray separating the overflow pipe and the bloW-offpipe therein, and a rcceptacle mounted in the boiler space beneath said dome for trapping any remaining precipitate in the water descending` from said trays. i

4. A feed-water purifier for locomotive boilers, comprising a casing containing a series of superimposed communicating trays adapted to hold feed-Water, said trays having baffle plates substantially transverse to the axis of motion of the locomotive, an overflow pipe mounted on one side of the baffle plate in each tray and means for blowing ofi' precipitate present in said trays mounted on the other side of the bafiie plate.

5. A feed-Water purifier, comprising a container with removable cover, containing' a series of superimposed communicating trays, containing overfiow pipes and blow-off nozzles, and having circular bafiie plates and partitions separating said pipes from said nozzles, and means for blowing off precipitate present in said trays. y

6. A feed-water puriiier, comprisinga container with removable cover, containing` a series of superin'iposed, communicating trays containing` overflow pipes and blow-ofi1 nozzles, and having circular baiiie plates formed in a double wall and partitions separating said pipes 'from said nozzle, and means for blowing off precipitate presentin said trays.

7. A feed-water purifier for boilers,'com prising a casing containing a series of removable superimposed trays, said trays containing overflow pipes terminating slightly below the bottoms of their respective trays, and blow-off pipes extending over the side walls and downwardly to points near the bottoms oit the trays for blowing oil vprecipitate present in said trays.

8. A feed water purifier for locomotive boilers comprising a series of superimposed vertically spaced trays, an overfiovv pipe individual to each tray through which water is supplied to the tray beneath, a blow-o pipe leadingfrom the bottoni of each tray, a baffle plate in each tray bet-Ween the blow-off pipe and overilow pipe therein, said blow-ofi pipes and overflow pipes being staggered with the. overflow pipes in each case discharging on the side of thebafiie plate from which the blow-oft' pipe leads, substantially as described.

KORNEL PECZ.

KARL REJTC). 

